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56
RESULTS

Media Type
54
texts
2
movies
Topics & Subjects
24
Bituminous coal
17
bituminous coal
12
coal mines and mining
12
mineral industries
9
Bituminous coal industry--Law and legislation--United States.
8
Pennsylvania. Department of Environmental Resources
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Collection
44
American Libraries
12
The University of Scranton Weinberg Memorial Library
9
ufnra
9
University of Florida George A. Smathers Libraries
8
University of Illinois Urbana-Champaign
6
Canadian Libraries
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Creator
9
united states.: national recovery administration
8
pennsylvania. department of environmental resources
4
pennsylvania. department of mines and mineral industries
3
alberta. scientific and engineering services and research division
2
ross, malcolm, 1895-1965
2
skema, viktoras w.
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Language
55
English
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